ISO 12619-2:2014/Amd 1:2016
(Amendment)Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components — Part 2: Performance and general test methods — Amendment 1
Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components — Part 2: Performance and general test methods — Amendment 1
Véhicules routiers — Composants des circuits d'alimentation pour hydrogène gazeux comprimé (CGH2) et mélanges de gaz naturel et hydrogène — Partie 2: Performance méthodes d'essai en général — Amendement 1
General Information
Relations
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 12619-2
First edition
2014-06-15
AMENDMENT 1
2016-05-15
Road vehicles — Compressed gaseous
hydrogen (CGH2) and hydrogen/
natural gas blend fuel system
components —
Part 2:
Performance and general test methods
AMENDMENT 1
Véhicules routiers — Composants des circuits d’alimentation pour
hydrogène gazeux comprimé (CGH2) et mélanges de gaz naturel et
hydrogène —
Partie 2: Performance méthodes d’essai en général
AMENDEMENT 1
Reference number
ISO 12619-2:2014/Amd.1:2016(E)
©
ISO 2016
---------------------- Page: 1 ----------------------
ISO 12619-2:2014/Amd.1:2016(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 12619-2:2014/Amd.1:2016(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 41, Specific
aspects for gaseous fuels.
ISO 12619 consists of the following parts, under the general title Road vehicles — Compressed Gaseous
Hydrogen (CGH2) and Hydrogen/Natural gas blends fuel system components:
— Part 1: General requirements and definitions
— Part 2: Performance and general test methods
— Part 3: Pressure regulator
— Part 4: Check valve
— Part 5: Manual cylinder valve
— Part 6: Automatic valve
© ISO 2016 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 12619-2:2014/Amd.1:2016(E)
Road vehicles — Compressed gaseous hydrogen
(CGH2) and hydrogen/natural gas blend fuel system
components —
Part 2:
Performance and general test methods
AMENDMENT 1
Page 10, 22.2
Add the following clauses after 22.2:
23 Material requirements
Materials normally in contact with hydrogen shall be determined to be acceptable in hydrogen service,
with consideration of hydrogen embrittlement and hydrogen accelerated fatigue. The performance
tests cannot guarantee that all cases and conditions of hydrogen service will be validated, so it is
still incumbent on the manufacturer to carefully screen materials of construction for their intended
use. Materials and design shall be such that there will be no significant change in the functioning of
the component, deformation or mechanical change in the component, and no harmful corrosion,
deformation, or deterioration of the materials when subject to the service conditions provided in
ISO 12619-1, 4.4.
NOTE Material performance data in hydrogen environments can be found in the Sandia National
Laboratory Technical Reference for Hydrogen Compatibility of Materials or ANSI/AIAA G-095,
ANSI/CSA CHMC 1, ASME B31.12, and SAE J2579, Appendix B.
Non-metallic materials normally in contact with hydrogen shall be determined to be acceptable in
hydrogen service. Consideration shall be given to the fact that hydrogen diffuses through these materials
more easily than through metals; therefore, the suitability of materials shall be verifi
...
DRAFT AMENDMENT
ISO 12619-2:2014/DAM 1
ISO/TC 22/SC 41 Secretariat: UNI
Voting begins on: Voting terminates on:
2015-09-07 2015-12-07
Road vehicles — Compressed gaseous hydrogen (CGH2)
and hydrogen/natural gas blend fuel system components —
Part 2:
Performance and general test methods
AMENDMENT 1
Véhicules routiers — Composants des circuits d’alimentation pour hydrogène gazeux comprimé (CGH2) et
mélanges de gaz naturel et hydrogène —
Partie 2: Performance méthodes d’essai en général
AMENDEMENT 1
ICS: 43.060.40
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO 12619-2:2014/DAM 1:2015(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2015
---------------------- Page: 1 ----------------------
ISO 12619-2:2014/DAM 1:2015(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/FDIS 12619-2:2013(E)
Contents Page
Foreword . iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 General . 2
5 Hydrostatic strength . 3
6 Leakage . 4
7 Excess torque resistance . 5
8 Bending moment . 5
9 Continued operations . 6
10 Corrosion resistance . 8
11 Oxygen ageing . 8
12 Ozone ageing . 8
13 Electrical overvoltages . 8
14 Non-metallic material immersion . 9
15 Vibration resistance . 10
16 Brass material compatibility . 10
17 Non metallic material compatibility to hydrogen . 11
18 Metallic material compatibility to hydrogen . 11
19 Pre-cooled hydrogen exposure test . 11
20 Insulation resistance . 11
Bibliography . 16
© ISO 2013 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO/FDIS 12619-2:2013(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 12619-2 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 25,
Vehicles using gaseous fuels.
ISO 12619 consists of the following parts, under the general title Road vehicles — Compressed Gaseous
Hydrogen (CGH2) and Hydrogen/Natural Gas blends fuel system components:
Part 1: General requirements and definitions
Part 2: Performance and general test methods
Part 3: Pressure regulator
iv © ISO 2013 – All rights reserved
---------------------- Page: 4 ----------------------
FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 12619-2:2013(E)
Road vehicles — Compressed Gaseous Hydrogen (CGH2) and
Hydrogen/Natural Gas blends fuel system components —
Part 2: Perfromance and general test methods
1 Scope
This Standard specifies performance and general test methods for Compressed Gaseous Hydrogen (CGH2)
and Hydrogen/Natural Gas blends fuel system components, intended for use on the types of motor vehicles
defined in ISO 3833.
It is applicable to vehicles using Compressed Gaseous Hydrogen (CGH2) in accordance with ISO 14687-1 or
ISO/TS 14687-2 and Hydrogen/Natural Gas blends using natural gas in accordance with ISO 15403-1 and
ISO/TR 15403-2. It is not applicable to the following:
a) liquefied hydrogen (LH2) fuel system components;
b) fuel containers;
c) stationary gas engines;
d) container mounting hardware;
e) electronic fuel management;
f) refuelling receptacles.
NOTE 1 It is recognized that miscellaneous components not specifically covered herein can be examined to meet the
criteria of this Standard and tested according to the appropriate functional tests.
NOTE 2 All references to pressure in this Standard are to be considered gauge pressures unless otherwise specified.
NOTE 3 This Standard may not apply to fuel cell vehicles in compliance with international Regulations.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute
provisions of this Standard. For dated references, subsequent amendments to, or revisions of, any of these
publications do not apply. However, parties to agreements based on this International Standard are
encouraged to investigate the possibility of applying the most recent editions of the normative documents
indicated below. For undated references, the latest edition of the normative referenced document (including
any amendments) applies. Members of ISO and IEC maintain registers of currently valid International
Standards.
ISO 188, Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests
ISO 1817, Rubber, vulcanized — Determination of the effect of liquids
ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests
© ISO 2013 – All rights reserved
1
---------------------- Page: 5 ----------------------
ISO/FDIS 12619-2:2013(E)
ISO 14687-1, Hydrogen fuel - Product specification - Part 1: All applications except proton exchange
membrane (PEM) fuel cell for road vehicles.
ISO/TS 14687-2, Hydrogen Fuel — Product Specification — Part 2: Proton exchange membrane (PEM) fuel
cell applications for road vehicles.
1)
ISO 12619-1: — , Road vehicles - Compressed Gaseous Hydrogen (CGH2) and Hydrogen/Natural Gas
blends fuel system components - Part 1: General requirements and definitions
2)
ISO 12619-3: — , Road vehicles - Compressed Gaseous Hydrogen (CGH2) and Hydrogen/Natural Gas
blends fuel system components – Part 3: Pressure regulator
ISO 11114-2: Transportable gas cylinders – Compatibility of cylinders and valve material with gas contents –
Part-2 – Non-metallic materials
ISO 11114-4: Transportable gas cylinders – Compatibility of cylinders and valve material with gas contents –
Part-4 – Tests methods for selecting metallic materials resistant to hydrogen embritlement
ISO 15500-2 : Road vehicles — Compressed Natural Gas (CNG) fuel system components – Part 2:
Performance and general test methods
ISO 1431-1: Rubber, vulcanized or thermoplastic – Resistance to ozone cracking – Part 1: Static and dynamic
strain testing
ISO 15403-1, Natural gas — Natural gas for use as a compressed fuel for vehicles — Part 1: Designation of
the quality
ISO/TR 15403-2, Natural gas — Natural gas for use as a compressed fuel for vehicles — Part 2: Specification
of the quality
ASTM G154, Standard Practice for Operating Fluorescent Light Apparatus for UV Exposure of Nonmetallic
Materials
ASTM D4814 -11b, Standard Specification for Automotive Spark-Ignition Engine Fuel
3 Terms and definitions
For the purposes of this Standard, the terms and definitions given in ISO 12619-1 apply.
4 General
4.1 Unless otherwise stated, the tests shall be conducted at room temperature: i.e. 20 °C ± 5 °C.
4.2 Components shall comply with the tests specified in ISO 12619-3 and subsequent parts, as well
as the applicable tests specified in this Standard. Because of the peculiarities of some components,
the list of tests given in this Standard (clauses 5 to 17) is not exhaustive. Where additional tests are
required, their provisions are given in another relevant part.
4.3 Unless otherwise specified, all tests shall be conducted using dry hydrogen, helium or blends of
nitrogen with a minimum 5% of hydrogen. Test shall be performed by qualified personnel and
appropriate safety measures shall be taken. The dew point of the test gas at the test pressure shall
1) To be published
2) To be published
© ISO 2013 – All rights reserved
2
---------------------- Page: 6 ----------------------
ISO/FDIS 12619-2:2013(E)
be at the temperature at which there is no icing, or hydrate or liquid formation. The dew point of the
test gas at the test pressure shall be at the temperature at which there is no icing, or hydrate or
liquid formation.
4.4 It is recognized that new technology may not be covered in ISO 12619-3 or subsequent parts of
ISO 12619.
4.5 Hydrogen used for testing shall comply with either ISO 14687-1, Hydrogen fuel - Product
specification - Part 1: All applications except proton exchange membrane (PEM) fuel cell for road
vehicles or ISO/TS 14687-2, Hydrogen Fuel — Product Specification — Part 2: Proton exchange
membrane (PEM) fuel cell applications for road vehicles.
5 Hydrostatic strength
A component shall not show any visible evidence of rupture when subjected to the following test procedure.
Plug the outlet opening of the component and have the valve seats or internal blocks assume the open
position. Apply, with a test fluid, the hydrostatic pressure specified in the applicable part of ISO 12619 to the
inlet of the component for a period of at least 3 min.
The hydrostatic pressure shall be increased at a rate of less than or equal to 1.4 MPa/sec until component
failure. The hydrostatic pressure at failure shall be recorded. The failure pressure of components which have
been subjected to previous durability and corrosion tests shall be no less than 80 per cent of the failure
pressure of the virgin component.
The samples used in this test shall not be used for any other testing.
© ISO 2013 – All rights reserved
3
---------------------- Page: 7 ----------------------
ISO/FDIS 12619-2:2013(E)
6 Leakage
6.1 General
6.1.1 Prior to conditioning, purge the component or device with nitrogen and then seal it at 30 % of
working pressure using test gases as defined in 4.3. In case of components subjected to more than one
working pressures, the test may be conducted in subsequent steps.
6.1.2 Conduct all tests while the device is continuously exposed to the specified test temperatures. The
3
device passes the test if it shall have a leakage rate of less than 10 Ncm /h (normal referred to hydrogen)
of hydrogen gas using the test method specified in 6.2, 6.3 and 6.4. If test gas other than pure hydrogen
is used, the leak rate shall be converted to a 100 percent hydrogen gas leak rate equivalent.
6.2 External leakage
6.2.1 Plug each device outlet with the appropriate mating connection and apply the test pressure to the
inlet
6.2.2 Apply test gases as defined in 4.3 to the test device.
6.2.3 At all test temperatures, immerse the components in a suitable test medium for at least 2 min or use
a helium vacuum test (global accumulation method) or other equivalent method.
6.2.4 Measure the leak rate by an appropriate method and it should not be more than as specified in 6.1.2.
6.3 Internal leakage
6.3.1 The internal leakage test is applicable only to devices having a closed position. The aim of this test
is to check the pressure tightness of the closed system.
6.3.2 Connect the inlet or outlet, as applicable, of the device, with the appropriate mating connection,
while leaving the opposite connection or connections open.
6.3.3 Apply the test pressure to the inlet or outlet, as applicable, of the device using test gas.
6.3.4 At all applicable temperatures mentioned in clause 6.4, immerse the component in a suitable test
medium for at least 2 min or other equivalent method.
6.3.5 Measure the leak rate at any applicable test pressure mentioned in clause 6.4, or otherwise
specified in the other parts of the Standard, by an appropriate method and it should not be more than as
specified in 6.1.2.
6.4 Test conditions
6.4.1 The device shall be pressurized at 100% of service pressure and then conditioned until temperature
equilibrium is achieved at low temperature of - 40 °C or - 20 °C, as applicable, and maintained at that
temperature for at least 30 minutes. Then the device shall be pressurized at 5% of service pressure and
maintained at that temperature for at least 30 minutes.
6.4.2 The device shall be pressurized at 5% of service pressure and then conditioned until temperature
equilibrium is achieved at the room temperature of 20 °C ±5 C and maintained at that temperature for at
least 30 minutes. Then the device shall be pressurized at 150% of service pressure and maintained at
that temperature for at least 30 minutes.
© ISO 2013 – All rights reserved
4
---------------------- Page: 8 ----------------------
ISO/FDIS 12619-2:2013(E)
6.4.3 The device shall be pressurized at 5% of service pressure and then conditioned until temperature
equilibrium is achieved at high temperature of 85 °C or 120 °C, as applicable, and maintained at that
temperature for at least 30 minutes. Then the device shall be pressurized at 150% of service pressure
and maintained at that temperature for at least 30 minutes.
7 Excess torque resistance
A component designed to be connected directly to threaded fittings shall be capable of withstanding, without
deformation, breakage or leakage, a torque effort of 150 % of the rated installation value, according to the
following test procedure.
a) Test an unused component, applying the torque adjacent to the fitting.
b) For a component having a threaded connection or threaded connections, apply the turning effort for 15
min, release it, then remove the component and examine it for deformation and breakage.
c) Subject the component to the leakage test specified in clause 6.
d) Subject the component to the hydrostatic strength test specified in clause 5.
8 Bending moment
A component shall be capable of operation without cracking, breaking, or leaking when tested according to the
following procedure.
a) Assemble the connections of the component, leak-tight, to an appropriate mating connection or
connections, representative of design intent. After assembly, the length of the inlet tubing shall be greater
than 300 mm (see Figure 1).
b) The outlet connection shall be rigidly supported, 25 mm from the component outlet, except in the
following cases:
if the component has an integral mounting means independent of the inlet and outlet connections,
the component shall be mounted using the integral mounting means specified by the manufacturer;
if the component is intended to be mounted by either the integral mounting means or the component
outlet, the mounting means that produces the most severe test condition shall be used.
c) Check this assembly for leaks prior to subjecting it to d).
d) With the component in the closed position, pressurize the system to 0,25 times the working pressure and
apply a force according to Table 1, 300 mm from the inlet, maintaining it for 15 min. Without removing the
force, check the component for leakage, in accordance with the test method given in clause 6, at room
temperature.
NOTE Depending on how this test is performed, increasing the load to compensate buoyancy could be necessary.
e) Conduct procedure d) four times, rotating the component 90° around the horizontal axis between each
test. Between tests, open and close (if applicable) the component three times with the bending moment
removed.
f) At the completion of the above tests, remove the component and examine it for deformation; then subject
it to the leakage test according to clause 6 and to the hydrostatic test according to clause 5
© ISO 2013 – All rights reserved
5
---------------------- Page: 9 ----------------------
ISO/FDIS 12619-2:2013(E)
Table 1 — Bending moment test force
Outside diameter of tubing Force
mm N
6 3,4
8 9,0
≥ 12 17,0
Figure 1 — Bending moment
Key
1 Component
2 Force point
a
4 x 90° rotation.
9 Continued operations
9.1 General
For the details of test methods for particular components, see the other parts of ISO 12619. The method
specified in this clause is general in nature and also applies to miscellaneous components.
Other components (those for which specific requirements are not specified) shall be subjected to the following
continuous operation test for a total number of cycles to be determined by the testing agency. The
determination of the total number of cycles shall be generally based on 15,000 fill cycles and/or 50,000 duty
cycles.
© ISO 2013 – All rights reserved
6
---------------------- Page: 10 ----------------------
ISO/FDIS 12619-2:2013(E)
9.2 Test method
9.2.1 Test procedure
Connect the component securely by a suitable fitting to a pressurized source of test gases as defined in 4.3
and subject it to the number of cycles specified in ISO 12619-3 and parts corresponding to specific component,
as applicable. A cycle shall consist of one opening and (if applicable) one closing of the component within a
period of not less than 10
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.